Thanks, I guessed they were older than that. It is a shame they don't put earth and stuff in there, at least they didn't when I visited. Knut has it, so why can't the sloth bears
Well, the knut-enclosure and the enclosure on the left have natural ground on the rocks, so 2 of 4 enclosures have it. That is not an excuse but we shouldn't make it worse as it is.
